On Friday, the daughters of former President George W. Bush and former First Lady Laura Bush celebrated their 35th birthday. And in a message to her sister on Instagram, Jenna was quick to remind Barbara of her beauty.

She is a SERIOUS babe,” Jenna wrote — hashtagging a shot of her sister “#princeharryeatyourheartout.”

Earlier, Jenna praised the bond she has with Barbara — sharing a baby photo of the two of them.

“How magical is the universe in giving me this pure-hearted, brilliant, hilarious, and strong sissy?!?” she captioned the shot. “I have been holding onto you for 30 plus (will keep it vague for you, my beast!) and LOVING every second. You are the best BEAST and life sure is fun with you in it! Happiest bday to you.”

Their mother also got in on the birthday wishes — sending out a sweet message to both women.

“Happy Birthday to our beautiful girls, Barbara and Jenna,” she wrote on behalf of her and George W. “The light of our lives.”

Laura was in full support when Jenna tried to set Barbara up with Harry during their Today interview in May for Harry’s Invictus Games — telling him “I have a single sister … she’s available. She’s going to kill me … I’ll give you her number.”

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Jenna admitted to PEOPLE that wasn’t the first time she had tried to play matchmaker for her single sister – but it was her first attempt at landing Barbara a royal.

“Frankly, I was doing her a favor,” Jenna said. “She was humiliated. But I think she also got a kick out of it.”

If the blind date did work, it wouldn’t have been the first time a Bush found love on a blind date. Jenna and Barbara’s own parents, Laura and George W, met on a blind date nearly 40 years ago and were married just three months later.